Running Ubuntu 14.04 on a custom desktop. I have Encore wireless N300 PCI-E Adapter ( seen here ) The driver is available for download at this link as well. I've read that a possible fix for connection issues is to uninstall/reinstall the wireless driver. It seems like there should be some other options to try first.
It only drops connection for a second, and then re connects. I can see the WiFi icon constantly fluctuating weak to strong.
Note: I also have this posted for a few days in Ubuntuforums and Unix Linux, but I've gotten no response yet. I'm just looking for a push in the right direction.
lspci
Network controller: Realtek Semiconductor Co., Ltd. RTL8192CE PCIe Wireless Network Adapter (rev 01
lsmod | grep rtl
rtl8192ce 53550 0
rtl_pci 26690 1 rtl8192ce
rtlwifi 63475 2 rtl_pci,rtl8192ce
rtl8192c_common 53172 1 rtl8192ce
mac80211 626557 3 rtl_pci,rtlwifi,rtl8192ce
cfg80211 484040 2 mac80211,rtlwifi
iwconfig | grep Power
eth0 no wireless extensions.
lo no wireless extensions.
Bit Rate=144.4 Mb/s Tx-Power=20 dBm
Power Management:off
WIRELESS Script*
########## wireless info START ##########
release
Distributor ID: Ubuntu
Description: Ubuntu 14.04 LTS
Release: 14.04
Codename: trusty
kernel
Linux mike-System-Product-Name 3.13.0-29-generic #53-Ubuntu SMP Wed Jun 4 21:00:20 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
lspci
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 09)
Subsystem: ASUSTeK Computer Inc. P8H77-I Motherboard [1043:8505]
Kernel driver in use: r8169
06:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8192CE PCIe Wireless Network Adapter [10ec:8178] (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. RTL8192CE PCIe Wireless Network Adapter [10ec:8178]
Kernel driver in use: rtl8192ce
07:00.0 USB controller [0c03]: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller [1b21:1042]
lsusb
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 04d9:a06b Holtek Semiconductor, Inc.
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 03f0:8904 Hewlett-Packard DeskJet 6940 series
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
PCMCIA Card Info
rfkill
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
iw reg get
country 00:
(2402 - 2472 @ 40), (3, 20)
(2457 - 2482 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
(5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
interfaces
interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
iwconfig
wlan0 IEEE 802.11bgn ESSID:"HighMoon"
Mode:Managed Frequency:2.437 GHz Access Point: <MAC address removed>
Bit Rate=144.4 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=70/70 Signal level=20 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:88 Missed beacon:0
route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 wlan0
192.168.1.0 0.0.0.0 255.255.255.0 U 9 0 0 wlan0
resolv.conf
nameserver 127.0.1.1
search hsd1.pa.comcast.net
nm-tool
NetworkManager Tool
State: connected (global)
Device: wlan0 [HighMoon] ----------------------------------------------------
Type: 802.11 WiFi
Driver: rtl8192ce
State: connected
Default: yes
HW Address: <MAC address removed>
Capabilities:
Speed: 144 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
HighMoon-guest: Infra, <MAC address removed>, Freq 2437 MHz, Rate 54 Mb/s, Strength 97
*HighMoon: Infra, <MAC address removed>, Freq 2437 MHz, Rate 54 Mb/s, Strength 100 WPA2
IPv4 Settings:
Address: 192.168.1.146
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.1
DNS: 75.75.76.76
DNS: 75.75.75.75
DNS: 192.168.1.1
Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: r8169
State: unavailable
Default: no
HW Address: <MAC address removed>
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: off
NetworkManager.state
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
NetworkManager.conf
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
iwlist
wlan0 Scan completed :
Cell 01 - Address: <MAC address removed>
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=70/70 Signal level=26 dBm
Encryption key:on
ESSID:"HighMoon"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000000000000000
Extra: Last beacon: 0ms ago
IE: Unknown: 0008486967684D6F6F6E
IE: Unknown: 010882848B962430486C
IE: Unknown: 030106
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 2D1AFC181BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606081500000000000000000000000000000000000000
IE: Unknown: DD810050F204104A00011010440001021041000100103B0001031047001002519461683B1AF5B2843176671BB6DB102100074C696E6B7379731023000D4C696E6B7379732045343230301024000776312E302E30321042000234321054000800060050F20400011011000D4C696E6B737973204534323030100800020084103C000103
IE: Unknown: DD090010180203F02C0000
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
Cell 02 - Address: <MAC address removed>
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=70/70 Signal level=26 dBm
Encryption key:off
ESSID:"HighMoon-guest"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000000000000000
Extra: Last beacon: 0ms ago
IE: Unknown: 000E486967684D6F6F6E2D6775657374
IE: Unknown: 010882848B962430486C
IE: Unknown: 030106
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: Unknown: 32040C121860
IE: Unknown: 2D1AFC181BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606081100000000000000000000000000000000000000
IE: Unknown: DD090010180200F02C0000
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
iwlist channel
wlan0 13 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
Current Frequency:2.437 GHz (Channel 6)
lsmod
rtl8192ce 53550 0
rtl_pci 26690 1 rtl8192ce
rtlwifi 63475 2 rtl_pci,rtl8192ce
rtl8192c_common 53172 1 rtl8192ce
mac80211 626557 3 rtl_pci,rtlwifi,rtl8192ce
cfg80211 484040 2 mac80211,rtlwifi
modinfo
filename: /lib/modules/3.13.0-29-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192ce/rtl8192ce.ko
firmware: rtlwifi/rtl8192cfwU_B.bin
firmware: rtlwifi/rtl8192cfwU.bin
firmware: rtlwifi/rtl8192cfw.bin
description: Realtek 8192C/8188C 802.11n PCI wireless
license: GPL
author: Larry Finger <Larry.Finger@lwfinger.net>
author: Realtek WlanFAE <wlanfae@realtek.com>
author: lizhaoming <chaoming_li@realsil.com.cn>
srcversion: EF063698748457BBEDB4633
alias: pci:v000010ECd00008176svsdbcsci*
alias: pci:v000010ECd00008177svsdbcsci*
alias: pci:v000010ECd00008178svsdbcsci*
alias: pci:v000010ECd00008191svsdbcsci*
depends: rtlwifi,rtl_pci,rtl8192c-common,mac80211
intree: Y
vermagic: 3.13.0-29-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:3B:EA:01:C4:BD:A9:65:67:CF:A7:23:C9:70:D8
sig_hashalgo: sha512
parm: swenc:Set to 1 for software crypto (default 0)
(bool)
parm: ips:Set to 0 to not use link power save (default 1)
(bool)
parm: swlps:Set to 1 to use SW control power save (default 0)
(bool)
parm: fwlps:Set to 1 to use FW control power save (default 1)
(bool)
parm: debug:Set debug level (0-5) (default 0) (int)
filename: /lib/modules/3.13.0-29-generic/kernel/drivers/net/wireless/rtlwifi/rtl_pci.ko
description: PCI basic driver for rtlwifi
license: GPL
author: Larry Finger <Larry.FInger@lwfinger.net>
author: Realtek WlanFAE <wlanfae@realtek.com>
author: lizhaoming <chaoming_li@realsil.com.cn>
srcversion: 9B7F19319428FF0EFE7E350
depends: mac80211,rtlwifi
intree: Y
vermagic: 3.13.0-29-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:3B:EA:01:C4:BD:A9:65:67:CF:A7:23:C9:70:D8
sig_hashalgo: sha512
filename: /lib/modules/3.13.0-29-generic/kernel/drivers/net/wireless/rtlwifi/rtlwifi.ko
description: Realtek 802.11n PCI wireless core
license: GPL
author: Larry Finger <Larry.FInger@lwfinger.net>
author: Realtek WlanFAE <wlanfae@realtek.com>
author: lizhaoming <chaoming_li@realsil.com.cn>
srcversion: 27E91755814596D634B7709
depends: mac80211,cfg80211
intree: Y
vermagic: 3.13.0-29-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:3B:EA:01:C4:BD:A9:65:67:CF:A7:23:C9:70:D8
sig_hashalgo: sha512
filename: /lib/modules/3.13.0-29-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192c/rtl8192c-common.ko
description: Realtek 8192C/8188C 802.11n PCI wireless
license: GPL
author: Larry Finger <Larry.Finger@lwfinger.net>
author: Ziv Huang <ziv_huang@realtek.com>
author: Georgia <georgia@realtek.com>
author: Realtek WlanFAE <wlanfae@realtek.com>
author: lizhaoming <chaoming_li@realsil.com.cn>
srcversion: 32F826C623BC49F764F7974
depends:
intree: Y
vermagic: 3.13.0-29-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:3B:EA:01:C4:BD:A9:65:67:CF:A7:23:C9:70:D8
sig_hashalgo: sha512
modules
lp
rtc
coretemp
nct6775
coretemp
nct6775
blacklist
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac
[/etc/modprobe.d/fbdev-blacklist.conf]
blacklist arkfb
blacklist aty128fb
blacklist atyfb
blacklist radeonfb
blacklist cirrusfb
blacklist cyber2000fb
blacklist gx1fb
blacklist gxfb
blacklist kyrofb
blacklist matroxfb_base
blacklist mb862xxfb
blacklist neofb
blacklist nvidiafb
blacklist pm2fb
blacklist pm3fb
blacklist s3fb
blacklist savagefb
blacklist sisfb
blacklist tdfxfb
blacklist tridentfb
blacklist viafb
blacklist vt8623fb
udev rules
PCI device 0x10ec:0x8168 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?", ATTR{address}=="<MAC address removed>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth", NAME="eth0"
PCI device 0x10ec:0x8178 (rtl8192ce)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?", ATTR{address}=="<MAC address removed>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan", NAME="wlan0"
dmesg
[ 5.120047] rtl8192ce: Using firmware rtlwifi/rtl8192cfw.bin
[ 5.194147] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[ 5.194286] rtlwifi: wireless switch is on
[ 8.897871] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 8.898113] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 11.059263] wlan0: authenticate with <MAC address removed>
[ 11.079193] wlan0: send auth to <MAC address removed> (try 1/3)
[ 11.080713] wlan0: authenticated
[ 11.082910] wlan0: associate with <MAC address removed> (try 1/3)
[ 11.085949] wlan0: RX AssocResp from <MAC address removed> (capab=0x411 status=0 aid=2)
[ 11.086080] wlan0: associated
[ 11.086087] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 11.130630] wlan0: deauthenticating from <MAC address removed> by local choice (reason=2)
[ 11.161112] wlan0: authenticate with <MAC address removed>
[ 11.507939] wlan0: send auth to <MAC address removed> (try 1/3)
[ 11.509417] wlan0: authenticated
[ 11.510494] wlan0: associate with <MAC address removed> (try 1/3)
[ 11.517862] wlan0: RX AssocResp from <MAC address removed> (capab=0x411 status=0 aid=2)
[ 11.517993] wlan0: associated
[ 19.514761] wlan0: Connection to AP <MAC address removed> lost
[ 20.825705] wlan0: authenticate with <MAC address removed>
[ 20.845680] wlan0: send auth to <MAC address removed> (try 1/3)
[ 20.849279] wlan0: authenticated
[ 20.853472] wlan0: associate with <MAC address removed> (try 1/3)
[ 20.856489] wlan0: RX AssocResp from <MAC address removed> (capab=0x411 status=0 aid=2)
[ 20.856620] wlan0: associated
########## wireless info END ############
Also went into Network Manager and locked in BSSID number in previously blank field. Still, I see the WiFi icon fluctuating. BSSID found through running:
cat /var/log/syslog | grep -e etwork -e wlan | tail -n20
Which gave me a message:
WLAN:0 WPA: GROUP
Rekeying completed with ( BSSID NUMBER)
[GTK=CCMP]
EDIT/FOLLOW UP: Per @Wild Man'comment: I found the only thing I could or needed to change was "ignore" in ipv6. Following that I ran the commands provided in his answer on the linked thread. After doing so, I was not able to re-connect via wireless until I rebooted, and then it takes a long time to open up start page. I am now online, but my WiFi icon/network is still fluctuating. Here's an output of
grep -R "[[:alnum:]]" /sys/module/rtl8192ce/parameters
/sys/module/rtl8192ce/parameters/ips:N
/sys/module/rtl8192ce/parameters/debug:0
/sys/module/rtl8192ce/parameters/fwlps:Y
/sys/module/rtl8192ce/parameters/swenc:Y
/sys/module/rtl8192ce/parameters/swlps:N
EDIT 2 Tried removing parameters with :
sudo rm /etc/modprobe.d/rtl8192ce.conf
Afterwards My readout with: grep -R "[[:alnum:]]" /sys/module/rtl8192ce/parameters
/sys/module/rtl8192ce/parameters/ips:Y
/sys/module/rtl8192ce/parameters/debug:0
/sys/module/rtl8192ce/parameters/fwlps:Y
/sys/module/rtl8192ce/parameters/swenc:N
/sys/module/rtl8192ce/parameters/swlps:N
So I ran:
sudo modprobe -rv rtl8192ce
sudo modprobe -v rtl8192ce fwlps=0
Which did set fwlps to :N. However I was disconnected fully until reboot.
lprtcbut you also havecoretempnct6775
– Wild Man Jun 23 '14 at 19:38coretempnct6775I recommend removing them. How did you fix the issue last time?sudo rm /etc/modprobe.d/rtl8192ce.confthen reboot and test connection. Please let us know if it works, if needed we can add one parameter at a time to see if we can get a better connection. With the new driver hopefully you you do not need any parameters. If we get it fixed please accept the answer so everyone will benefit and I will include these comments in the answer to make it complete. – Wild Man Jun 23 '14 at 20:10sudo apt-get update && sudo apt-get upgradein the terminal post all errors if you get any. Have you have any other trouble with the connection with the vpn the reason you posted in the first place? If not please accept the answer so everyone can benefit from the answer. – Wild Man Jun 24 '14 at 23:05